first off that is not a c. cyanopleura (bluesided) it is a large female solorensis...and that is a cool vid as well...your fairy seems to be pretty very well acclimated to your tank if it is eating out of your hand like that..how long have you had it?

female solorensis is often mislabeld and c. lyukyuensis (yellowflanked), cyanopleura(bluesided),solorensis (red eyed), aurantidorsalis(orange back), luteovittatus (velvet multicolor), randalli (randals fairy or shoals fairy) are all very closely realted that make up one huge complex..but i see the one you have called blue sided or ruby head alot...the dark marks on the gill plate is a dead give away on the female solorensis..if you have room i would add a male just keep in mind that female fairys tend to be more aggressive than thier male counter parts...the female should help the male keep its pretty green color as green/blue fairys seem to lose the most color if house without females...after one week it looks like yours is setteled in nice..pretty fish for sure

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